Wide input voltage stabilized power supply circuit

The utility model provides a wide input voltage stabilized power supply circuit, which comprises a rectifier bridge, a field effect transistor Q1, an LDO chip U1, an electrolytic capacitor C1, a resistor R1, a resistor R2 and a Zener diode ZD1, the positive electrode of the output end of the rectifi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG YONGJUN, ZHANG ZHENGYONG, ZHU BAOHUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The utility model provides a wide input voltage stabilized power supply circuit, which comprises a rectifier bridge, a field effect transistor Q1, an LDO chip U1, an electrolytic capacitor C1, a resistor R1, a resistor R2 and a Zener diode ZD1, the positive electrode of the output end of the rectifier bridge is connected with the drain electrode of the field effect transistor Q1, the grid electrode of the field effect transistor Q1 is respectively connected with one end of the resistor R2 and the cathode of the Zener diode ZD1, and the other end of the field effect transistor Q1 is connected with the electrolytic capacitor C1. The other end of the resistor R2 is connected with the positive electrode of the output end of the rectifier bridge, the positive electrode of the voltage stabilizing diode ZD1 is grounded, the source electrode of the field effect transistor Q1 is connected with the resistor R1 and the positive electrode of the electrolytic capacitor C1 in sequence, the negative electrode of the electro